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In a constant-pressure calorimeter, 70.0 mL of 0.310 M Ba(OH)2 was added to 70.0 mL of 0.620 M HCl. The reaction caused the temperature of the solution to rise from 24.26 °C to 28.48 °C. If the solution has the same density and specific heat as water, what is ?H for this reaction (per mole of H2O produced)? Assume that the total volume is the sum of the individual volumes.
10.00 mL of a solution containing 0.17 M NaCl and 0.23 M AlCl3 is introduced into a fully charged cation exchange column. How many moles of hydronium ions will be released by the column?
Determine the limiting reactant -reaction mixture initially contains no products
a particle moving 30,816 km/hr has a wavelength of 725 nm. What is the mass of the particle?
The density of so-called "heavy water"=1.1053 g/mL at 20 0C. determine what would be the mass of the flask when filled with heavy water?
Metallic magnesium reacts with steam to produce magnesium hydroxide and hydrogen gas. a. If 16.2 g Mg are heated with 12.0 g H2O, what is the limiting reactant?
Calculate the change in enthalpy and entropy of 50 g of liquid water starting at 10 degrees Celsius and completely evaporating into H2O gas at 100 C.
A 26.0-g sample of ice at -11.0°C is mixed with 123.0 g of water at 90.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
calculate the number of moles of AgCrO4(Ksp=9.0x10^12) that will dissolve in 1.00L of 0.010 M K2CrO4 solution. what will be the ion concentrations at equilibrium?
How much heat is required to raise the temperature of 7.50 grams of water from 10 degrees celcius to 55 degrees celcius
The addition of 6 g of salt to a sample of pure water causes its freezing point to be reduced from 0°C to -1.5°C. After an additional amount of salt is dissolved in the solution
Draw all stereoisomers having molecular formula C6H12 that contain one double bond and give the IUPAC name for each compound.
The concentration of Fe2+ in a sample of water is 350 mmol/L At what pH will 99% of the Fe2+ be precipitated as Fe(OH)2? Ksp = 7.9 x 10-15
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